下列对象分布在孝感市及相关县市，其中不属于生态系统的是

A．孝昌的观音湖

B．孝感的双峰山

C．云梦的蔬菜基地

D．安陆钱冲的古银杏群

Jim, I'm _____ my present job. I want to look for another one. [ ]

A. fond of

B. busy with

C. tired of

D. pleased with